Inband only works with the ulaw and alaw codecs. David Nedved wrote: > Hi All, > > Anyone have any idea what could cause incoming calls on a SIP channel > to no longer be able to use DTMF? DTMF on incoming calls on zaptel and > on local SIP softphones and ATAs all work fine. Nothing gets > registered in the CDR or on the console in verbose level 10, it just > times out. I haven't changed anything on my part and can't get through > to Viatalk tech support to ask them what they changed (fat load of luck > getting that question answered anyway). Everything was working fine > with dtmfmode=inband and relaxdtmf at the default, now I've tried all 6 > valid combos of those two settings with no change. This is on asterisk > 1.2.27 that's been working fine in production for about 3 months now. > > Here's the section from sip.conf (the way it had been working all > along): > > [viatalk] > type=peer > secret=(yep it's right) > username=(yep it's right) > host=newyork-1.vtnoc.net > canreinvite=no > insecure=very > qualify=yes > context=incoming-viatalk > dtmfmode=inband ; Choices are inband, rfc2833, or info > ;relaxdtmf=yes ; Relax dtmf handling > >
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